ash pan; ash tray
A container for catching ashes, typically from a stove, fireplace, or ashtray.
I cleaned the ash pan of the stove.
灰受けにたまった灰を捨ててください。
Please throw away the ashes that have collected in the ash tray.
Compound of 灰 (hai, 'ash') and 受け (uke, 'receiver, container').